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OpenAI Codex

Validates OpenAI's optional skill metadata in agents/openai.yaml, plus Codex plugins and marketplaces against the Codex plugin specification. The metadata rule auto-enables for Agent Skills; the plugin and marketplace rules auto-enable only when their Codex manifests are present.

Rule ID Description Default Severity Autofix
codex-openai-metadata Validate skill openai.yaml and catalog-compatible plugin metadata error (auto) -
codex-plugin-json-valid .codex-plugin/plugin.json must be valid JSON with required fields error (auto) -
codex-plugin-structure Only plugin.json belongs in .codex-plugin/ warning (auto) -
codex-marketplace-json-valid .agents/plugins/marketplace.json must be valid JSON with required fields error (auto) -
codex-marketplace-registration Codex plugins must be registered in .agents/plugins/marketplace.json error (auto) auto